[INFO] cloning repository https://github.com/oberblastmeister/lingo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oberblastmeister/lingo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foberblastmeister%2Flingo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foberblastmeister%2Flingo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26af355e388025c218d1c8a222df21ede2da89d1
[INFO] checking oberblastmeister/lingo against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foberblastmeister%2Flingo" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/oberblastmeister/lingo
[INFO] finished tweaking git repo https://github.com/oberblastmeister/lingo
[INFO] tweaked toml for git repo https://github.com/oberblastmeister/lingo written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/oberblastmeister/lingo on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/oberblastmeister/lingo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125
[INFO] running `Command { std: "docker" "start" "ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid --cfg crater_hack --force-warn invalid-c-variadic-arguments" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking countme v2.0.4
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking text-size v1.1.0
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling xshell-macros v0.1.8
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking indenter v0.3.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking drop_bomb v0.1.5
[INFO] [stderr]     Checking ungrammar v1.10.0
[INFO] [stderr]     Checking smol_str v0.1.17
[INFO] [stderr]     Checking xshell v0.1.8
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]     Checking rowan v0.12.5
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir/crates/parser)
[INFO] [stderr]     Checking syntax v0.1.0 (/opt/rustwide/workdir/crates/syntax)
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]   --> crates/parser/src/lexer.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Token {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> crates/parser/src/lexer.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Token {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 19 |     fn new(kind: SyntaxKind, len: u32) -> Token {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> crates/parser/src/lexer.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Lexer<'a> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EOF_CHAR` is never used
[INFO] [stdout]   --> crates/parser/src/lexer.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) const EOF_CHAR: char = '\0';
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> crates/parser/src/lexer.rs:35:8
[INFO] [stdout]     |
[INFO] [stdout]  34 | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout]  35 |     fn new(input: &'a str) -> Lexer<'a> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  42 |     fn chars(&self) -> Chars<'a> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  46 |     fn peek_nth_char(&self, n: usize) -> char {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  51 |     fn peek_char(&self) -> char {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  55 |     fn bump_char(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  59 |     fn chars_len(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  64 |     pub(crate) fn is_eof(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  69 |     pub(crate) fn len_consumed(&self) -> u32 {
[INFO] [stdout]     |                   ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  73 |     fn next_token(&mut self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  77 |     fn lex_main(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 145 |     fn line_comment(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn whitespace(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn string_lit(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn number_lit(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     fn ident(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_ident_start` is never used
[INFO] [stdout]    --> crates/parser/src/lexer.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub fn is_ident_start(c: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_whitespace` is never used
[INFO] [stdout]    --> crates/parser/src/lexer.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub fn is_whitespace(c: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]   --> crates/parser/src/lexer.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Token {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> crates/parser/src/lexer.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Token {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 19 |     fn new(kind: SyntaxKind, len: u32) -> Token {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> crates/parser/src/lexer.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Lexer<'a> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EOF_CHAR` is never used
[INFO] [stdout]   --> crates/parser/src/lexer.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) const EOF_CHAR: char = '\0';
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> crates/parser/src/lexer.rs:35:8
[INFO] [stdout]     |
[INFO] [stdout]  34 | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout]  35 |     fn new(input: &'a str) -> Lexer<'a> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  42 |     fn chars(&self) -> Chars<'a> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  46 |     fn peek_nth_char(&self, n: usize) -> char {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  51 |     fn peek_char(&self) -> char {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  55 |     fn bump_char(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  59 |     fn chars_len(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  64 |     pub(crate) fn is_eof(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  69 |     pub(crate) fn len_consumed(&self) -> u32 {
[INFO] [stdout]     |                   ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  73 |     fn next_token(&mut self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  77 |     fn lex_main(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 145 |     fn line_comment(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn whitespace(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn string_lit(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn number_lit(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     fn ident(&mut self) -> SyntaxKind {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_ident_start` is never used
[INFO] [stdout]    --> crates/parser/src/lexer.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub fn is_ident_start(c: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_whitespace` is never used
[INFO] [stdout]    --> crates/parser/src/lexer.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub fn is_whitespace(c: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stdout] error: CRATER ERROR: C-variadic argument with type `AtFlags`.
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.19.1/src/unistd.rs:853:56
[INFO] [stdout]     |
[INFO] [stdout] 853 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `AtFlags` does not implement `VaArgSafe`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.19.1/src/unistd.rs:853:56
[INFO] [stdout]     |
[INFO] [stdout] 853 |                       args_p.as_ptr(), env_p.as_ptr(), flags);
[INFO] [stdout]     |                                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: values passed as C-variadic arguments must implement `core::ffi::VaArgSafe`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #162483 <https://github.com/rust-lang/rust/issues/162483>
[INFO] [stdout]     = note: requested on the command line with `--force-warn invalid-c-variadic-arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nix` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused dependency `drop_bomb`
[INFO] [stderr]   --> crates/parser/Cargo.toml:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | drop_bomb = "0.1.5"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `drop_bomb`
[INFO] [stderr] warning: `parser` (manifest) generated 1 warning
[INFO] [stderr] warning: unused dependency `rowan`
[INFO] [stderr]   --> crates/syntax/Cargo.toml:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | rowan = "0.12.4"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `rowan`
[INFO] [stderr] warning: unused dependency `smol_str`
[INFO] [stderr]   --> crates/syntax/Cargo.toml:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | smol_str = "0.1.17"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `smol_str`
[INFO] [stderr] warning: `syntax` (manifest) generated 2 warnings
[INFO] running `Command { std: "docker" "inspect" "ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125", kill_on_drop: false }`
[INFO] [stdout] ac2d2386a3f7957d2707fdf9c0e9b0db8f1a8e0359a5cee99a37147150e7f125
